I agree with Librarygirl. The guy at the lfs
lied if he recommended those fish. If you upgrade to at least 30 gallons (140 liters?) you can keep the angelfish. You should try to give the lfs
the bala sharks, they will take them, unless you want to get a 100+ gallon tank!
IDK, maybe you do, who am I to judge people!
If you get rid of the angel and the sharks, you could get two more minnows and 4 more cories. I recommend upgrading your tank. If you dont want to keep the angel, maybe get a 20 gallon, and like I said, you could keep the angels if you got a 30, which is what I recommend. Just remember that the angels will grow to 4 inches long and 4 inches tall.
If you don't know what cycling is (not like bicycle, a different kind)
, you need to do some research. There are tons of threads about people needing help cycling. You should do some research about that before you look at the threads, then you will have a bit of background info before you here about it. I have started a thread about fishless cycling, and I am cycling my 20 gallon tank right now. I have been planning my tank since before October, and it won't be ready for 3 more weeks. My advice is, research, research, then plan, and when you think you have done enough planning, you might be halfway done! Planning your tank and researching is everything.
Good luck, and
by the way. Keep us updated.